I was under the impression that Next.js was the successor to React? Is that not the case?
I could totally see how you'd arrive there. Backstory: create-react was a starter boilerplate for React built and maintained by Facebook. This was when webpack was the standard and just getting a local development environment to "hello world" for React could be challenging.[1] That project was depreciated and the popularity of the Next.js site framework for react projects (plus I certainly assume heavy lobbying from…
It seems like Vercel had enough money and hype to lure react devs away from facebook to work for them. I see this as the biggest reason why react is pushing users towards vercel. Further, Vercel was able to work very closely with the react dev team when developing react server components, giving vercel a first-to-market advantage and a headstart on vendor lock-in.